Reversing-gear for explosive-engines.



B. H. VN WLLE.

REVEESING EEA?? FR EXPLGSIVE EHGHES.

(Application led Aug'. 30, 1900.)

I MMU@ To `all whom it may concern:

i UNITED STATES #PATENT OFFICE.

,nolntn'lf,nir-Tim von PALLER, or NUREMB'ERGQEERMY.f',

, nEvERslNvjc-rfc EAR Fofa EX PLos'ivEeE NGIN s; f

sPncmIcA'rroN forming para of Letters Patentino. 665,460, dated Januari; 8.51961. I; Appla'ation filed August 80, 190th Serial No. 28.592.l (No model.)

Beity 'nown that I, ROBERT. RITTER'voN PALLER,'a snbjectof theEmperorofAnstria- Hungary, residing at 5 Gellertstrasse,Nurem p of an internalcombustion or explosion motor.

`berg,`"in' the German Empire, have invented certain new and .useful Improvements'in Reversing-Gear of Internal Combustion or Elxplos1on.-Motors,`of which the following is a full, clear, and exact description.

This invention relates tothe reversing-gear in which the ignition of the explosive mixture -iseiect'edby'an'electricspa k or jby means of electricity.

i. The reversing-gear to which this invention gasped-ally applicable consists' 'of the, Wellknown 'deviceof'` a ,rotatable and longitudi Qnally-movable vsleeve furnished with two cams. A,.fAccording-t'o thepresent improvements the early or late ignition is effected by a device `which is operated b y the same lever or handle by means of` which the motor lis caused to move forwardorbackward,4

The ignition device' consists of two contacts Y `arranged upon .the` doubl" cam-sleeve and sloping in opposite directions relatively to the axis of the sleeve.v Dnring the rotation of the sleeve-'encor other of the sloping contacts comes against another contact and closes the circuit, thns effecting' ignition.

The drawings herewith Iilliterate the itil- "proved devices.

lis4

` Figure 1 illustrates'the 'general arrangement ofthe devices in elevation. Fig. 2 vis a handle or lever. Y Y

The shaft'v of the reversing-gear.isdriven from the mainshaft by means of the .pinion 'ntandthewheel `s,-the pinion and wheel being respectively ofthe proportions one to two. The .shaft fv-is square or non-circular 'in-sectiom'and upon it is mounted'the sleeve h h', the veye or bore of which is similarly shaped. The sleeveis thus free to slide along the shaft, but is Aat the same rotate with it.

fr is arod provided with a handle k,by.means ofl which the sleeve lmay be moved to start or time bound to 5o reverse the motor.

n' and ni'are the two :ams upon the sleeve,

v come n'to contac either of which is adapted to ,come into gear with and operate the valve device-a, accord ing to the position of -the handle lo. This re versing device is well'know'n. These improvements consist in the electrical-devicesby means of which the time of ignition is altered to correspond with the positions of the camsand the-direction'of rotation. An extension hf 'of .the vsleeve h is formed withtwo contacts c ceitherof which, according to-the position'of the sleeve, may

with and'cumplete an elec'- trical circuit through a third' contact c3.' Upon the, position ofthe -sleevethen will deforward "as one or other of the cams operates vpend whether the motor moves backward or thevalve-gear, and 4ignition will take place--` at the desired time, according 'towhich contact, c' or c?, makes contact with c3.

"c4 indicates the sliding or rubbing connection', by means of which the sleeve audits contacts are placed in the circuit.

By means of the handleilc., the motion of which is transferred to the rod by Aany suitable means, the motor will move forward in the position II, and late ignition will take place, while early 'ignition will take place in position I. The motel' will Amovebackward with. late ignition in position Ill-and with early ignition in position 1V.

What I claim as my invention, to'secure by Letters Patent, is-

1. In a reversing-gear for internal combus-l tion or explosion motors', the combination tudinally movable thereon and provided with two cams, either one of which may be brought into engagement with the valve device by the longitudinal movement of the sleeve, two electric contacts on .said sleeve, one or the other of which can be engaged with the stationary contact, .and a rubbing-contact engaging permanently with-said sleeve.

and desire l with a valve device and a stationary electric contact,of a rotatable shaft, a sleeve longi- 2. VIn a reversing-gear for internal combush tion or explosion motors, the Acombination with a valvedevice and a stationary electric contact, of a rotatable shaft, asleeve longitudinally movable thereon-and provided w'ith two cams, either one of which maybe brought into engagement with the valve device by the longitudinal movement `of the sleeve; two In witness wheeof I subscribe my signaelectric contacts arranged obliquely on oppoture in p'resence of two witnesses. site. sides of the sleeve, lone wor the othervof which can be brought .in line with the sta i ROBERT mmm VON FALLER' 5 tionary contact. u pon the move'mentof thel 'Witnessesz sleeve, and a rubbing-contact engaging per- OSCAR BOOK,

'manently'with said sleeve. Grone Snnrm; 

